BulletFX 4.0 Multiphysics

BulletFX is a GPU-accelerated, highly optimized version of the Bullet Physics library for 3DS Max, adding features such as simulation of softbody and inflatable objects, granular solver, FLIP fluid solver with integrated foam, simulation of ripping and tearing meshes, OpenVDB support.

BulletFX is capable of simulating anything you can imagine from sand, water to clothes to buildings blowing up to crawling bugs.